Pneumatic grain-conveyer



(No Model.)

J. B. SCHUMAN. PNEUMATIG GRAIN GONVEYBR.

No. 559,615. Patented May 5, 1896.

Wjfnesses.' 5 3771/6716011' Ma/W James B'czlmaw UNITED STATES PATENT EEicE.

JAMES B. SCIIUMAN, OF COLUMBIA CITY, INDIANA.

PNEUMATIC GRAIN-CONVEYER.

SPECIFICATION forming part of Letters Patent No. 559,615, dated May 5, 1896.

Application filed August 1B, 1895. Serial No. 559,547. (No modem I To @ZZ whom it may concern.-

Be it known that I, JAMES B. SCHUMAN, a citizen of the United States, residing at Columbia City, in the county or" "Whitley and State of In diana,have invented certain new and useful Improvements in Pneumatic Grain-Conveyers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to makeand use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to an attachment for grain threshers and separators; and it consists of a peculiar combination of parts comprising a pneumatic conveyer and elevator by which grain is conveyed and elevated after being cleaned to a weigher or bagger or elsewhere, as desired, and will be fully described hereinafter.

The object of my invention is. to provide a conveyor that will obviate the necessity of using expensive and troublesome conveyer gearing, belts, chains, and cups or brackets, and my device is simple, cheap of construction, eiicient and durable in use. I attain my object by constructing the apparatus as illustrated in the accompanying drawings, in which-u Figure 1 represents a side view of a separator having my conveyor attached; Fig. 2, a view of opposite side ot separator with conveyer attached; Fig. 3, a sectional view of portion of conveyer-pipe, showing air-escape; and Fig. 4, a sectional view of portion of conveyer-pipe, showing grain-inlet.

In the drawings, A is a separator; B, a fanblower attached to same. D and F are beltpulleys; E, a belt connecting said pulleys; C, the conveyer-pipe; G, the inlet-funnel to conveyer-pipe C, and J the delivery end of conveyer-pipe.

In the construction the pipe C is preferably of round section and made of any suitable metal, usually galvanized iron, and of a length suitable to the separator or other machine to which it is designed to be attached. The part C from the fan to the point C2 is smaller than the part C, which is of uniform size from C2 to the part C3, where it begins to gradually enlarge at the bottom and continues enlarging to the discharge end C4 and J. The funnel G is connected by a curved pipe G to the pipe C, intersecting at C2.l At the rounded elbow there are perforations K in the top of pipe, the metal from the perforations being forced inward at front and not cut oii at back part, leaving them integral with the wall of pipe, so as to form lips on the inside partially covering the openings in front and totally at rear. The part C is connected by any suitable means to the outlet-tube of the fan B. Any suitable form of chute is attached to the side of the separator above and in proximity to the funnel G.

In practical application in Fig. 1 the fan supplies the pipe C' with air in sufficient quantity to iill it somewhat under compression. The grain is admitted into the funnel G and neck G', where the air strikes it from behind, forcing it through the pipe C with considerable velocity to the part G3, where the air and grain begin to separate and the velocity decreases, the grain falling by gravity from the opening .I into a weigher or bagger, while the air passes out of the openings K, the lips a dei'lecting any of the grain that may strike the upper part of the elbow in its outward passage. As applied in Fig. 2, the tailings are admitted from the receptacle L into the funnel G and conveyed, as above described, to the receptacle J', from where they again pass through the separator. The fan Bis operated by means of its pulley D, belt II or E, and pulleys F or I, which are driven in the usual manner in such machines.

It is obvious from the foregoing that slight variations in detail may be made and the conveyer used at any angle without departing from the intent and purpose of my invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The combination with a pneumatic grainconveyer for separators, having a main conveying pipe or tube; of the grain-inlet pipe G', having the funnel G, of smaller diameter than the said main conveying-pipe connected thereto at its upper side near the receiving end of same, the discharge-opening of said inlet-pipe being toward the discharge end of said main pipe; the air supply pipe C' of IOO in the top of said bend on its greater radius; v the series of angular deflectingdips a partly covering said perforations inside of said bend g the tapering part in said main pipe at its bottom beginning at said bend and decreasing toward the receiving end of said Inain pipe, substantially as shown and described.

2. In a pneumatic grain-conveyer for sepa rators, having a main eonveyer-pipe,\the cornbination of the `tapering portion at bottom of pipe near discharge end enlarged 'from C to C4; the enlarged discharge -opening J 5 the elbow having the openings K in top portion of said elbow; the deI'lecting-lips ct partially covering said openings on inside of said elbow. substantiall y as shown and described.

3. In a pneumatic grain-conveyer for separators, having a fan-blower and eonveyerpipe, the combination with Said conveyer` of the air-supply pipe C connected to said blower; the grain-inlet pipe G joining the said air-supply pipe at its discharge end, the two connecting the said conveyer-pipe; the combined area of the said air-supply pipe and said inlet-pipe, being approximately equal to the Said conveyer-pipe into which they discharge grain and air; the tapering part in said main Vpipe from C3 to C4; the elbow having the openings K in top of said elbow: the angular deiieeting-lips ct partly covering said openings,- 'substantially as shown and described.

In'testirnony whereof I 'affix my signature in ypresence oftwo witnesses.

JAMES B. SCHLXIANA lVitnesses:

M. MCDONALD, EDWIN EATON. 

